Law and system are always institutional，fundamental，comprehensive，stable and lasting.So，only by establishing a sound legal and institutional system，can put the power into cage system，and promote the effect to prevent and control corruption at the source.At present，there are still some loopholes and shortcomings in our anti-corruption laws and regulations.We must set up awareness of using the legal system to curb corruption，take efforts to promote the democratization and legalization of scientific decision，perfect the control and supervision of the exercise of power mechanism，improve the legal and institutional system of corruption prevention.Only by doing this，can make the public authority to be regulated strictly and completely，so as to provide effective protection for the prevention of corruption.